On Sun, Apr 21, 2013 at 02:49:31AM +0200, Jiri Kosina wrote: > On Wed, 17 Apr 2013, Han Pingtian wrote: > > > > > On a power7 system, we have installed 3.9-rc7 and crash 6.1.6. If I run > > > > something like "make -j 64" to compile linux kernel from source, sooner > > > > or latter, oom-killer will be triggered. Before that, when I trying to > > > > analyse the live system with crash, some processes' %MEM and RSS looks > > > > too big: > > > > > > > > > > Do you have the oom killer log from /var/log/messages with > > > /proc/sys/vm/oom_dump_tasks enabled? Have you tried to reproduce this > > > issue with CONFIG_DEBUG_VM and CONFIG_DEBUG_PAGEALLOC enabled (you may > > > even want to consider CONFIG_KMEMLEAK)? > > > > I have enabled CONFIG_KMEMLEAK and recompiled kernel. This is the > > /sys/kernel/debug/kmemleak after the reboot. Please have a look. Thanks. > > Either kmemleak is very wrong about some false positive in selinux, or > selinux is leaking memory quite heavily. > > Could you try disabling selinux completely, to see if the leak goes away? > Thanks your reply. We had disable selinux from the very beginning.
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